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Radiant|Natural|IGI

1.57ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 770664057

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 770664057

Diamond specifications and retailer prices

From ₹2,56,120 INR
As of November 6, 2026
Save ₹3,13,881 INR (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: ₹5,70,000 INR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.57ct natural radiant diamond

This 1.57ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 770664057. Listed at 15 retailers as of November 5, 2026, with prices from ₹2,56,120 to ₹5,70,000, a ₹3,13,881 spread on the same certified stone. NZ Jewellers lists it at ₹5,70,000. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle35.2°
OriginNatural
Grading LabIGI
CertificateIGI 770664057
Dimensions7.67 × 5.83 × 4.03 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Top View
7.67 mm5.83 mm1.57 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 770664057
Side View
Table 72.0%Crown 40.8°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: ₹5,44,266 INR|Low: ₹2,56,120 INR|High: ₹5,52,907 INR|Avg: ₹3,69,884 INR|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3₹2,56,120 INR
Retailer 4₹3,08,715 INR
Retailer 2₹3,44,686 INR
Retailer 5₹3,80,940 INR
Retailer 6₹3,99,348 INR
Retailer 1₹5,44,266 INR

28 data points across 6 retailers

15 retailers₹2,56,120 INR to ₹5,70,000 INR

A
Cheapest Retailer
-
₹2,56,120 INR
A
Retailer 2
-
₹2,90,495 INR
View
Retailer 3
-
₹3,05,240 INR
View
Price last confirmed 95 days ago
A
Retailer 4
-
₹3,08,715 INR
View
B+
Retailer 5
-
₹3,15,102 INR
View
B+
Retailer 6
-
₹3,27,217 INR
View
Retailer 7
-
₹3,27,217 INR
View
Price last confirmed 9 days ago
B+
Retailer 8
-
₹3,39,803 INR
View
B+
Retailer 9
-
₹3,40,742 INR
View
A
Retailer 10
-
₹3,44,686 INR
View
B+
Retailer 11
-
₹3,77,558 INR
View
A
Retailer 12
-
₹3,80,940 INR
View
B+
Retailer 13
-
₹3,99,348 INR
View
B+
Retailer 14
-
₹5,44,266 INR
View
Most Expensive
B+
NZ Jewellers
0ecf2490-5f9c-44b3-8ce7-9bf1aa529f16 · Nov 5
₹5,70,000 INR
$6,069 USD
View
14 more retailers have this diamond
Prices start from ₹2,56,120 INRSave up to ₹3,13,881 INR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.57ct Radiant
₹2,56,120 INR